Ink for ceramic transfer-pictures.



tunrrnn ATES JOHANN KASSEKER, 0F AL'IVV'ASSER,

GERMANY, ASSIGNOR T0 MESSRS. SCHMIDT,

KASSEKEB & 00., OF ALTWASSEE, GERMANY.

IENK FUR CERAMIC TRANSFER-PICTURES.

No Drawing.

T 0 all whom 'it may concern:

Be it known that T, JOHANN KAssnKER, a subject of the King of Prussia, and residing at Altwasser, Silesia, German Empire, have invented certain new and. useful Improvements in Tnks for Ceramic Transfer-Pictures, of which the following is a specification.

My invention relates to an ink for ceramic purposes, and consists in substituting, in the vehicle, for the ordinary linseed-oil varnish (which when manufacturing by boiling with minium in ceramic ink making contains, as is well known, at most from 510% of the latter), amass which is prepared by saturatminium (or other suitable lead compounds) so that some 50% of the latter is contained.

lln consequence ofthe high percentage of lead in theink, the addition of a special glass flux is rendered unnecessary, whereby numerous advantages are attained, as will be hereinafter specified.

' Tn manufacturing the new inks I proceed substantially in the following manner :-Tnto a suitable vessel I put linseed-oil, with somewhat more than an equal quantity by weight of miniu'm (red-lead) or other suitable lead compounds, and boil it as long as it absorbs the same, i. 6. until it is completely satucharacter, similar to colophony. After saturation the other necessary non-drying thinning ingredients, such as animal fat, salad oil, lavender oil, aniseed oil, oil of cloves, etc., are added, for the purpose of sufficiently thinning down themass, the amount of thinning agent depending upon whether a tough or viscous, or more liquid ink is desired, such amount usually varying between 10 and 20 per cent: Hereupon the coloring matters, which are solely metallic oxids, are added to the mass, and the boilv ing continued while the mass is being constantly agitated, until the entire material is Specification of Letters Patent.

mg as completely as possible linseed-oil with 7 Patented Saept. 27?, TQM),

Application filed November 1, 1909. Serial No. 525,709.

a uniformly mingled, when the ink may be regarded as ready for use.

()wing to the high percentage of lead in the ink, the latter will adhere extremely firmly on being burned into the ceramic ware, without the ink-as hitherto necessary and as above mentionedrequiring a fused tlux to be added to it. With prior inks from 3-5 parts flux must be added for each 1 part coloring matter, so that the percentage of the latter in the mass is'relatively small. For this reason the colors frequently do not stand out with sutiicient sharpness. ()wing to the absence of the fluxes in my process, an ink is obtained which possesses a very high percentage of the actual p1gments and thus gives extremely clear and full colored pictures. As a consequence a much larger number of transfers can also be taken from the plates. A further advantage, due to fluxes being dispensed with, is that the ink maintains its uniform condition unaltered for an exceedingly long time, whereas with prior inks, in which the flux is merely mechanically mixed, the ink frequently becomes cheesy, or the flux forms a sediment. The chief'advantage of the new ink, however, is that by means of the same transfer pictures can be readily produced either by autot-ypy or heliography, and with the same sharpness as in the case of lithography. This has hitherto been extremely ditlicult, in fact practically impossible, even when a paper is used which has been provided with a coating insoluble in water. For the high percentage of glass flux merely mechanically mingled with the lnk, eyen when in an exceedingly fine state of d1 v1- sion, operates with a grinding action like emery on the rotation of the printing roller and damages the fine gelatin films, whereby the attainment of sharp pictures and especially a large number thereof, has been impossible.

Having thus described my invention, T declare that what 1L claim as new and desire wmee pigment and linseed oil substantially satu- In testimony whereef I afix my signature rated wlth an equal quantlty of & ieadl emn- 1n presence of two wlcnesses. v 3 x JOHANN KASSEKER.

.2. All mk 101' ceramlc transier plcmres, 5 comprlsmg a non-drymg thmnmg hqulcl, a W1tnesses:

plgment, and hnseed 011 substantlally sa'bu- SIEGFRIED LUSTIG,

rated with an equal quantity of minium. ADOLF SCHMIDT. 

